#!/usr/bin/python3
# -*- coding:utf-8 -*-
""""
   @Author: 即将拥有人鱼线的yjw
   @Time: 2023/7/19 17:15
   @File: test001.py
   @desc:
"""


class C():
    def __init__(self,name,age):
        self.name = name
        self.age = age
    def __str__(self):
        print(f'{self.name}年龄为:{self.age}')

if __name__ == "__main__":
    # x = C('李总',28)
    # print(x.__class__)
    # print(x.__dict__)
    # print(x.__str__())
    # print(x.__doc__)
    # flag = check_env(env='pg')
    # change_company(company_no='0', company_name='恒生电子', env='mysql')
    # print(f'flag为{flag}')
    number = 3
    for i in range(12):
        print(i)
        number = number*2
        print(number)




